NEW GUIDE: Feather Freezer Door Alarm #AdafruitLearningSystem @Adafruit

A new guide today in the Adafruit Learning System: Feather Freezer Door Alarm
By Matthew Desmarais.

Accidentally leaving a door open for a long time will ruin the contents of a freezer if nobody knows about it. This alarm will notify folks when the door has been left open for more than 10 minutes, and it will start beeping after 5 minutes. A motion sensor will restart the door timers when activated, as someone could spend >5 minutes loading the freezer. This alarm is designed to fit a double door commercial freezer.

The guide uses an Adafruit ESP32-S3 Feather with 4MB Flash 2MB PSRAM running CircuitPython.

See this guide now > > >

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Filed under: adafruit learning system, ESP32-S3, feather, projects, Security —
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